linux - Creating GTK+ themes - Super User
superuser.com › questions › 18480Graphical application for generating different color variations of Oomox (Numix-based), Materia (ex-Flat-Plat) and Arc themes (GTK2, GTK3, Cinnamon, GNOME, Openbox, Xfwm), Archdroid, Gnome-Color, Numix, Papirus and Suru++ icon themes. Have a hack for HiDPI in gtk2. It also seems to be compatible with most Linux distros and most DEs.